This my second TEA laser, and although it isn't the best, it's still pretty cool. I have a video of it firing, and if I shot at a black piece of paper for minute or two, it would actually make a hole! It took me about 30 minutes to build and a couple hours to adjust the spark gap.
http://www.youtube.com/watch?v=Z8AVzZ_LcF0
http://www.youtube.com/watch?v=Z8AVzZ_LcF0
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